Several times now I have had a unit that I move a short distance and then it takes off in a completely different direction.  So next turn, I move it again, and again it takes off after I have moved it.  At first I thought it was a bug.  It took me a while to figure out that I must have inadvertently clicked on the Explore button for the unit.  It took me a while to figure out because, once you have clicked explore, there is no visual indication that the unit is set to explore (other than haring off like a moron every time you move it)

Could the Explore button light up and remain obviously highlighted while the unit is in explore mode?